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Finding the Fourth Proportional to 67.01, 92.45 and 43.74

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Solution

The fourth proportional to 67.01, 92.45 and 43.74 is: 60.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.01 : 92.45 = 43.74 : x
  2. Step 2: Convert to fraction form
    67.01/92.45 = 43.74/x
  3. Step 3: Cross multiply
    67.01x = 92.45 × 43.74
  4. Step 4: Simplify right side
    67.01x = 4,043.93
  5. Step 5: Solve for x
    x = 4,043.93/67.01
  6. Step 6: Final answer
    x = 60.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.